Estimate solar panel count, production, incentives, and payback.
Turn a target system size into panel count, expected output, electricity value, total project cost, and a more useful long-term ROI view.
Estimate solar panel count, annual production, and simple payback
Start with the system size you want, match it to a panel wattage, then turn that setup into estimated annual production, electricity savings, and a simple installation payback.
- System size is usually discussed in kW, even though total production is measured in kWh.
- This version uses a built-in annual production assumption to keep the form simpler.
- Total project cost here is equipment plus installation labor before credits and rebates.
- This still ignores financing costs, maintenance, and battery replacement if storage is added later.
A practical first solar page
This page is aimed at the early planning question most people actually have: how large the system should be, how many panels that means, and how quickly the installation might pay for itself based on electricity prices, equipment cost, labor cost, incentives, and slower long-term production decay.
Translate a desired kW target into actual panel count.
Now included so sticker price and net cost are not confused.
Now modeled with degradation and utility inflation instead of flat annual savings.